66464375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 40

約数和(自身を含む): 90908400

約数和(自身を除く): 24444025

約数列:

[1, 5, 19, 25, 29, 95, 125, 145, 193, 475, 551, 625, 725, 965, 2375, 2755, 3625, 3667, 4825, 5597, 11875, 13775, 18125, 18335, 24125, 27985, 68875, 91675, 106343, 120625, 139925, 344375, 458375, 531715, 699625, 2291875, 2658575, 3498125, 13292875, 66464375]

約数ペア:

[(1, 66464375), (5, 13292875), (19, 3498125), (25, 2658575), (29, 2291875), (95, 699625), (125, 531715), (145, 458375), (193, 344375), (475, 139925), (551, 120625), (625, 106343), (725, 91675), (965, 68875), (2375, 27985), (2755, 24125), (3625, 18335), (3667, 18125), (4825, 13775), (5597, 11875)]